baber/WOPTO huggingface dataset:
Patent GB-1109619-A (GB)
Title: Method for making urea nitrate
IPC: C07C273/02
Filed: 1966-04-29
Abstract: Urea nitrate is obtained by mixing urea and an aqueous solution of 63 to 85% by weight of nitric acid, controlling the temperature of the mixture during the period of and immediately following the reaction to be 105 DEG  to 135 DEG  C., agitating the reaction product at said temperature to provide substantial homogeneity therein and to promote evolution of moisture therefrom, and thereafter cooling the reaction product to obtain comminuted urea nitrate.  The urea and nitric acid solution are preferably used in substantially equal molar quantities and where the aqueous solution contains 63 to 75 wt. per cent of nitric acid, it may be pre-heated.  The reaction product may be heated during agitation and a heated inert drying gas may be passed over the hot agitated reaction product. The reaction may be effected batchwise or continuously, a suitable type of apparatus being described.
Patent GB-967096-A (GB)
Title: Improvements in or relating to a method and apparatus for the preparation of sand for moulds, cores and the like
Inventor: HIGGS HAROLD
IPC: B22C5/04
Filed: 1962-05-17
Abstract: 967,096. Mixers; feeding devices. FORDATH ENGINEERING CO. Ltd. Aug. 2, 1963 [May 17, 1962], No. 18966/62. Heading B1C. [Also in Division B3] A method of preparing sand for use in moulds or core boxes comprises heating the sand in a chamber 10 to raise the temperature thereof, passing the heated sand into a storage chamber 11, the level of sand in which is controlled, and admitting the sand into a mixer (not shown) as described in Specifications 952,517 and 952,518, for blending with binding or other polymerizing constituents. The quantity of heated sand passing into the mixer is controlled by a gate 13, at the top of the heating chamber, which is actuated by photoelectric devices 20 and 21 which function in relation to the level of sand in the storage chamber 11.
Patent GB-286206-A (GB)
Title: Process for the hydrogenation of organic substances, especially of the products of the distillation of coals and petroleum oils
IPC: C10G1/06
Filed: 1927-07-18
Abstract: 286,206. Hugel, G., Paul, M., and Boistel, M. Feb. 28, 1927, [Convention date]. Hydrogenation, destructive.- The hydrogenation of organic substances, particularly the products of distillation of coal and petroleum is effected by means of hydrides of alkali or alkaline earth metals which are coated with oil substances such as tetrahydronaphthalene or with more readily oxidizable substances such as the amides of the alkali and alkali earth metals. The process may be effected below 300‹ C. and 100 kilos pressure and is not affected by the presence of contact poisons such as nitrogen, sulphur, arsenic, and oxygen compounds. Sodium in finely-divided or fragmentary condition is introduced into an autoclave A having a stirrer a, and hydrogen is admitted under pressure through a branch pipe f by action of a compressor H which draws the gas from a holder G. The sodium hydride which is formed below 300‹ C., is stabilized as described above. The hydrogenation is effected in an autoclave B having stirrers b. The stabilized catalyst and the substance to be hydrogenated are introduced into the autoclave B by a pipe c, which mav also serve for withdrawing the product. Hydrogen is admitted through a pipe d supplied by the compressor H and bubbles through the material in the autoclave. Unused hydrogen escapes by a pipe e to the gas holder G. The product is withdrawn by the pipe c and branch g to a distillation apparatus D. Pitch from coal-tar may be hydrogenated in this manner at about 300‹ C. and below 100 kilos pressure, using about 10 per cent of sodium hydride. The product is a liquid which on distillation yields fractions from benzene to heavy oils. The treatment of natural asphaltum is also mentioned. Specification 18232/14 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that the hydrides may be made during the process. This subject-matter does not appear in the Specification as accepted.
Patent GB-279931-A (GB)
Title: Improvements in liquid supply systems
IPC: F16N13/22
Filed: 1926-07-30
Abstract: 279,931. Dean, G., and Ainsley, H. July 30, 1926. Direct air pressure apparatus, non-automatic.-In apparatus for the selective supply of various liquids of the kind in which the liquids in separate containers can be selectively withdrawn in measured quantity by a single operating device, the valves 59 controlling the inlet of the liquids to the vessel 57 are shaped so that their ends are flush with the surface of the vessel so that each liquid is completely discharged before another is admitted. The liquid is drawn in by suction and discharged by gaseous pressure. A rotatable scraper 60 clears the inner surface of liquid, and a float 58 indicates the liquid level.
Patent GB-516473-A (GB)
Title: Improvements relating to fastenings for doors, windows or the like
IPC: E05B65/42
Filed: 1938-06-27
Abstract: 516,473. Door &c. fastenings. SANDLAND, R. E. June 27, 1938, No. 19047. [Class 44] A fastening for doors and windows of vehicles comprises a bolt normally retracted by a spring and shot by fluid pressure derived from the lubrication system of the engine. The pressure supply is thus . dependent on the running of the engine so that the bolts are shot and the doors cannot be opened whilst the vehicle is in motion. In a simple form the bolt carries a piston slidable in a cylinder, to which pressure is supplied to move the piston to shot position, the outward motion being limited by an internal sleeve carried by the cylinder end and surrounding the bolt. The spring for retracting the bolt surrounds this sleeve and bears against the piston. Fig. 3 shows the application to a motor vehicle having two doors 19 which close against a central pillar 31. A double-ended cylinder 12 housed within the pillar has. two pistons 20 carrying the bolts 10 which project through the ends of. the cylinders into engagement with keepers 47, carried on the door edge, when pressure is supplied to the cylinder through a central pipe 41. Conical springs 29 on the outer sides of the pistons normally hold the bolts retracted. The bolt ends may be bevelled so that the doors may be slammed if the bolts have been shot with the doors open. The cylinder covers have air-vent holes 38. The Specification describes the use of a reservoir in the supply system with a valve for automatically controlling the supply to the fastening members responsive to the pressure in the reservoir. The bolts such as 10 instead of acting directly as fastenings, may serve to hold the bolts of latches or locks in their projected position.
Patent GB-147074-A (GB)
Title: Improvements in locking devices for detachable wheels
IPC: B60B3/18
Filed: 1920-07-06
Abstract: 147,074. Dhainaut, G., and Fauveliere, M. April 30, 1919, [Convention date]. Locking nuts.-The cap a, by which a detachable-wheel hub f is secured on the permanent hub, is locked by means of a key b sliding axially in a slot in the cap and engaging a toothed ring c formed in one with or soured to the wheel hub. The key is carried by a screw bolt d which works in the outer end of the cap, a spring e being provided to prevent accidental loosening due to vibration.
Patent GB-978685-A (GB)
Title: Method and apparatus for producing a cigarette rod
IPC: A24C5/343
Filed: 1961-05-26
Abstract: 978,685. Cigarette-making machines. K. KÍRBER. May 26, 1961 [July 4, 1960; July 7, 1960], No. 19072/61. Heading A2C. [Also in Division G3] A tobacco rod forming machine is automatically controlled in dependence on the rate of supply of tobacco trimmed off from a tobacco stream so that the rate of supply of tobacco trimmed off is maintained substantially constant. In Fig, 1 tobacco is supplied from a distributer 1 on to a belt 2 which presses it into a groove 5 in a rotating wheel 4 where it is held by suction. The uneven upper portion of the tobacco in groove 5 is removed by a trimmer 8 and carried away by a spiked wheel 6 from which it is removed by a beater wheel 26 and added to the tobacco on belt 2. The trimmed stream of substantially constant cross-section meets a cigarette paper strip and is transported by a belt 9 through a rod-forming member 10. Variations from a desired value of the depth of tobacco on spiked wheel 6 are detected by a spring loaded feeler 16 which operates one or other of two switches to run a motor 24 in the appropriate direction to correct the depth of tobacco by adjustment of the rate of supply of tobacco from distributer 1. The plane of trimming is also adjustable by a motor 29 under the control of a device 27 measuring the amount of tobacco in the tobacco rod or, alternatively, in another arrangement, the amount of tobacco in the untrimmed stream. Feeler 16 makes contact with the tobacco over a substantial length. Various arrangements of spring and dashpot to damp the operation of feeler 16 are described. A temporary tobacco storage compartment may be introduced between trimmer 8 and spiked wheel 6. Automatic control of the plane of trimming and/or the speed of wheel 6 instead of, or in addition to, control of distribution, is referred to.
Patent GB-933751-A (GB)
Title: Cine-viewer
IPC: G03B21/32
Filed: 1962-05-17
Abstract: 933,751. Kinematograph apparatus. AGFA A.G. May 17, 1962 [May 16, 1961; Sept. 30, 1961], No. 19115/62. Class 97 (1). A cine-viewer for substandard film includes an optical film projector, a projection screen substantially parallel to the projector axis and means for deflecting the projected beam on to the screen, all the said components being so arranged on a carrier mounted parallel to and spaced from a baseboard and the film transport means being such that, during an interruption in the projection, the film can be drawn towards the baseboard, substantially without twisting, for precessing by a cutter and splicer supported by the baseboard. As shown (Figs. 1 and 2), the lamp house 9, gate 12 and lens 39 of a cine-projector, together with a mirror 46 and a screen 11 are arranged on a carrier 7 mounted on a bridge cross-piece above a baseboard 1. Film from a spool 22 on a support 3 is guided by way of a roller 15, a sprocket 13, the gate 12 and two more rollers 17 and 18 to a take-up spool 19 on a second support 4. The arrangement is such that film in the region of roller 17 may be drawn down towards a cutter and splicer 8 without twisting. Both spools 19 and 22 are provided with winding handles 21, 24 respectively, the coupling to spool 22 being of higher gearing than the other for rapid rewinding purposes. A roller 16 is provided so that film during re-winding may by-pass the gate 12 and sprocket 13. The casing 7 is releasably secured to the cross-piece 5 by a screw 6 and may be similarly secured, in the inverted position, underneath said cross-piece, for portability. A light hood 10 is provided for the projection beam. An optical compensator, comprising a rotating prism 31 with polished faces 32 and matt corner faces 33, is coupled to the driven sprocket 13 by way of gears 34 and 35. Sprocket 13 and gear 35 are mounted on a lever 37 pivoted about the axis of rotation of prism 31 so that the separation of the sprocket 13 from the gate aperture 12a may be varied for framing adjustment. The lever 37 is provided with a finger-piece 38 projecting above the carrier 7. A similar finger-piece 43 on a lever 41 pivoted about an axis 42 is provided for focusing the projection lens 39. In order that the actual frame of film in the gate may be marked, a knife 50 on a tongue portion 47 of the hood 10 is provided, together with a gate recess 12b. In a modification (Fig. 3, not shown), the bridge construction is replaced by a cantilever arrangement and the spools are supported above the projector axis. Further, the spools are motor driven and rotatable knobs are provided in place of the finger-pieces 38a, 43. In a similar cantilever modification (Figs. 4 and 5, not shown), the support for the cantilever is hinged so that the apparatus may be folded flat for carrying purposes. Unlike the previous modification, the spools in this case are manually driven, a single handle being provided which is pivotable between two positions for driving the two spools respectively.
Patent GB-1132649-A (GB)
Title: Improvements in splined connections
Inventor: MOORHOUSE STEPHEN
IPC: F16D1/02
Filed: 1966-04-30
Abstract: 1,132,649. Shaft couplings. DAVID BROWN TRACTORS Ltd. 28 April, 1967 [30 April, 1966], No. 19116/66. Heading F2U. To take up backlash in a splined coupling between male and female members 10, 17, or 12, 17, a chamfered cylindrical wedge 20 or 21, radially movable in a diametral bore 18 or 19 in the outer member, is spring-urged inwardly by a wire circlip 24, to engage and spread apart the non-driving or non-driven spline flanks, and take up wear, so that the mating splines engage on the driving side only and backlash on overrun is prevented. Each wedge 20, 21 is grooved at its outer end 23 to seat the circlip 24 the ends of which are hooked to locate in the other end of the diametral bore 18 or 19 opposite the wedges, and the angle of the chamfered side 22 on the wedges is less than the angle of friction, providing a self-locking action. In an alternative arrangement the wedge may be housed in a blind bore in the externally splined inner shaft and urged outwardly by a helical compression spring.
Patent GB-274865-A (GB)
Title: Improvements relating to fire extinguishing apparatus
IPC: A62C13/00
Filed: 1927-07-19
Abstract: 274,865. Phylax Feuerl÷sch-Automaten-Bau Ges. July 21, 1926, [Convention date]. Extincteurs; portable pressure reservoirs; sprinkling-apparatus.-An extinguisher is so coustructed and mounted that it can be used as a portable hand extinguisher, or as a hand or automatic fixed extinguisher in connection with a sprinkling system. The extinguisher, Fig. 1, comprises a container a for liquid, a cap j, and a gas-generating cartridge c which is operated by a rod g when a striker i is depressed to pierce the cartridge seal h and force in a deformable cap d arranged above the rod g. The, striker i comprises a tube pierced at i<1> and i<2> and closed by a seal s. When the device is operated as a portable extinguisher the liquid is forced out by a duct e orifice d<1> and outlet nozzle k, the striker i being forced in by hand. A fixed mount. ing for the extinguisher, Fig. 2, comprises a carrier n in the open lower end of which the extinguisher is supported by studs o and bayonet slots. Slidable in the carrier is a striker-piston r above the head of which is arranged a detonator t. When the latter is exploded, in case of fire, by a fuse cord t<1>, the piston r is forced down and operates the striker i, at the same time piercing the seal s of the striker i. Liquid now escapes into the carrier n from the nozzle k and also from the seal s by way of the apertures i<1>, i<2>, and then passes to the sprinkler system by way of a tube x. For fixed hand use, a striker u, normally held raised by a pivoted strut v or a spring, is provided above the piston r. The striker u might be released from a distance for example electrically.
Patent GB-676230-A (GB)
Title: Process for the production of ceramic castings
IPC: B28B13/04
Filed: 1949-07-20
Abstract: 676,230. Conveyers; loading &c. CREMER. G. July 20, 1949. [June 30, 1949] No. 19145/49 Classes 78 (i) and 78 (iv). [Also in Group V] In a process for automatic production of ceramic moulded articles by a preliminary and a final pressing operation the preliminary moulded articles on leaving the preliminary press are placed on a conveyer winch acts as a dosing or regular feed device and compensates inequalities in the output of the preliminary press, are carried thereby to an automatic transfer device which transfers them at regular time intervals to the final press, from which, after pressing, they are automaticmatically transferred at regular time intervals to another conveyer which conveys them to a drying device or for further treatment. A preliminary press a moulds a strip of material, which is cut by the machine c into piles of four superposed tiles. A rollerway d feeds these via a feedregulating device e to an intermittently driven conveyer g from which each tile is transferred synchronously with the movement of the conveyer by rotating arms provided with suction heads k, onto a final press comprising a rotating table m. After the final pressing each tile is transferred by a reciprocating pivoted arm q having a suction head o to one of a plurality of carriers r, arranged in sets of four and running on rails t to a drying oven v. The feed-regulating device, Fig. 3, comprises a counterweighted plate e<SP>1</SP> pivoted at w and normally resting under a stop w<SP>11</SP>. On stop w<SP>11</SP> is pivoted a second plate e<SP>11</SP> and a sliding bolt y is mounted in a bracket on the underside of this plate and also in a fixed bracket and is normally held in position below the end of plate e<SP>1</SP> by a spring z. When the piles of tiles fill the conveyer g and collect on the plate e<SP>11</SP> the excess weight on this plate causes a cam x<SP>11</SP> to withdraw the bolt y so that further articles passing over the plate e<SP>1</SP> depress this plate and drop off onto a return conveyer, not shown.
Patent GB-935826-A (GB)
Title: Improvements in or relating to vehicles for travelling over land and/or water
Inventor: COCKERELL CHRISTOPHER SYDNEY
IPC: B60V1/00
Filed: 1958-09-01
Abstract: 935,826. Air cushion vehicles. HOVERCRAFT DEVELOPMENT Ltd. Sept. 24, 1959 [Sept. 1, 1958], No. 19148/63. Divided out of 935,824. Class 4. An air cushion vehicle in which the cushion is contained at least in part by a peripheral fluid curtain comprises means for causing at least part of the curtain forming fluid to be recovered into the vehicle at a position outboard of the position from which issues the curtain-forming fluid, and means for causing the recovered fluid to issue from the lower part of the vehicle to form a further fluid curtain inboard of the original fluid curtain or to recirculate in the existing curtain. In the Figure the parallel dotted lines represent a multiple curtain system in which air issues from a port 29 and is recovered into an inlet transfer port 31 to be fed back inboard through pump 32 to a port 30 to issue as a further fluid curtain. The system may comprise the only two ports shown in which case the returned air will recirculate in the existing curtain. Specifications 854,211, 893,715 and 919,350 also are referred to.
Patent GB-880304-A (GB)
Title: Improvements in or relating to chains for use in conveyor systems
IPC: B65G17/38
Filed: 1959-06-04
Abstract: 880,304. Conveyer chains. KING, D. M. May 30, 1960 [June 4, 1959], No. 19157/59. Class 24. Each outer link of the conveyer chain described in Specification 713,447 is in engagement with a keeper plate 15, the ends of which engage slots in the connecting pins 13, 14. The inner links may be of the kind described in Specification 869,746. Specification 824,981 is referred to in the Provisional Specification.
Patent GB-332706-A (GB)
Title: Improvements in or relating to friction clutch stops
IPC: G05G5/06
Filed: 1929-06-24
Abstract: 332,706. Carling, W. T. June 24, 1929. Addition to 298,313. Combinations of clutches with brakes ; facilitating changing speed.-In transmission mechanism embodying the clutch stop described in the parent Specification, a stop 2, removable by a handle 5 on the instrument-board 4, is arranged normally (i.e. when the load shaft is in motion) to coact with a lug 11 on the main clutch pedal 10, which can thus be depressed only so far as will bring the clutch stop into light engagement to slow down the gear-box parts to facilitate meshing of the change-speed wheels or clutches, but not far enough to cause the angular displacement of the clutch-stop element. When the load shaft is stationary and unlocking of the change-speed wheels or clutches is necessary, the stop 2 is turned aside against its spring 8, as shown in Fig. 3, to allow the clutch stop to engage fully and function as described in the parent Specification. An adjustable screw 9 may be provided to take the pedal thrust and also to limit the pedalstroke to that required for full engagement of the clutch stop when the stop 2 is removed. Return of the stop 2 by the spring 8 is limited by contact of a flange 2<a> with the screw 9. Specifications 282,121, 294,301, 307,631, and 327,191 are referred to. The Provisional Specification states that the invention is applicable to marine, aircraft, and stationary engines as well as to motor vehicles.
Patent GB-617628-A (GB)
Title: Improvements in radio-altimeters and like distance meters
IPC: G01S1/02
Filed: 1946-06-28
Abstract: 617,628. Radiolocation. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 28, 1946, No. 19387. Convention date, June 10, 1942. [Class 40 (vii)] A beat-frequency-type distance-measuring apparatus such as an aircraft altimeter is provided with more than one measuring range by changing the peak frequency-deviation of the frequency-modulated transmission under the control of a voltage dependent on the distance to be measured, which voltage effects the change-over when it crosses a predetermined value in either direction. In the system shown, transmitter 1 emits oscillations which are frequency-modulated by the variable condenser 8 actuated by the magnet system 5 which is energized from the 50 c/s. supply 6. Direct and reflected radiations produce a beatfrequency in the output of mixer 10 in the receiver, and this beat-frequency, after amplification at 11, is passed to a frequency meter 12 and indicator 13. The D.C. voltage, proportional to the average beat-frequency, which is obtained from the output circuit of the frequency meter 12, is also fed as a negative bias to valve 20. At ranges below 100 metres, this bias is such that relay 19 is operated with the result that contacts 22, 23 are open and relay 16 is released. Contact 15 is thus closed, short-circuiting resistance 14 so that the amplitude of energization of magnet 5 and thus the peak frequency-deviation is at a high value. When the range being measured exceeds 100 metres, relay 19 is released with the result that contacts 22, 23 are closed, relay 16 is. operated, and owing to the removal of the short-circuit across resistance 14 the frequency deviation is reduced to a lower value. The D.C. output from 12 thus also falls, but owing to the resistance 21 being connected in shunt with the relay coil by contact 22, the relay sensitivity is reduced and the relay 19 is not re-operated. In order to make the system stable, relay 16 is made slow to operate so that the change in frequency deviation is delayed until the change in state of relay 19 has occurred. Specification 617,355 is referred to. The Specification as open to inspection under Sect. 91 comprises also a simplified version in which the change from one range to another is performed manually by means of a switch controlling the operation of relay 16. This subject-matter does not appear in the Specification as accepted.